NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 513
BANDWIDTH.COM CLEC, LLC - OH 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-01-04 513-690-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C SEVEN MILE OH
2021-01-04 513-750-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CLERMONT OH
2021-01-04 513-750-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C CLERMONT OH
2021-01-04 513-750-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C CLERMONT OH
2021-01-04 513-750-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C CLERMONT OH
2021-01-04 513-750-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C CLERMONT OH
2020-12-29 513-796-9XXX 9000–9999Assigned TELNYX LLC 073H MORNINGSUN OH
2020-12-29 513-839-8XXX 8000–8999Assigned TELNYX LLC 073H OXFORD OH
2020-12-22 513-790-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2020-12-22 513-790-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2020-12-22 513-790-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2020-12-22 513-790-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2020-12-22 513-790-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2020-12-16 513-548-1XXX 1000–1999Assigned TELNYX LLC 073H MASON OH
2020-12-16 513-613-1XXX 1000–1999Assigned TELNYX LLC 073H MORROW OH
2020-12-16 513-654-0XXX 0000–0999Assigned TELNYX LLC 073H SO LEBANON OH
2020-12-16 513-689-9XXX 9000–9999Assigned TELNYX LLC 073H LEBANON OH
2020-12-15 513-743-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-12-15 513-743-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-12-15 513-743-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-12-15 513-743-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-12-15 513-743-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-12-14 513-995-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHEL OH
2020-12-11 513-757-5XXX 5000–5999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F REILY OH
2020-11-20 513-323-5XXX 5000–5999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F SHANDON OH
2020-11-20 513-689-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LEBANON OH
2020-11-20 513-689-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LEBANON OH
2020-11-20 513-689-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LEBANON OH
2020-11-19 513-653-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J CINCINNATI OH
2020-11-13 513-438-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C MONROE OH
2020-11-13 513-506-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C MONROE OH
2020-11-04 513-596-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2020-11-04 513-663-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2020-11-04 513-663-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2020-11-04 513-663-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2020-11-04 513-669-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C LTL MIAMI OH
2020-11-04 513-669-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C LTL MIAMI OH
2020-11-04 513-669-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C LTL MIAMI OH
2020-11-04 513-669-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C LTL MIAMI OH
2020-11-04 513-694-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-11-04 513-694-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-11-04 513-694-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-11-04 513-991-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-11-04 513-991-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-11-04 513-991-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-10-21 513-643-0XXX 0000–0999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F WILLIAMSBG OH
2020-10-20 513-647-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C MIDDLETOWN OH
2020-10-20 513-647-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C MIDDLETOWN OH
2020-10-20 513-676-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C BETHANY OH
2020-10-20 513-676-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C BETHANY OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.